1

materialsystem/stdshaders/HDRSelectRange_ps2x.fxc

@@ -0,0 +1,45 @@
+// STATIC: "CONVERT_TO_SRGB" "0..1"	[ps20b][= g_pHardwareConfig->NeedsShaderSRGBConversion()] [PC]
+// STATIC: "CONVERT_TO_SRGB" "0..0"	[= 0] [XBOX]
+
+#define HDRTYPE HDR_TYPE_NONE
+#include "common_ps_fxc.h"
+
+sampler LowSampler	: register( s0 );
+sampler HiSampler	: register( s1 );
+
+struct PS_INPUT
+{
+	float2 texCoord : TEXCOORD0;
+};
+
+struct MYHDR_PS_OUTPUT
+{
+    float4 color[2] : COLOR0;
+};
+
+MYHDR_PS_OUTPUT main( PS_INPUT i ) : COLOR
+{
+	float3 lowColor = GammaToLinear( tex2D( LowSampler, i.texCoord ) );
+	float3 hiColor = GammaToLinear( tex2D( HiSampler, i.texCoord ) );
+
+	float4 lowOut;
+	lowOut.a = 1.0f;
+	float4 hiOut;
+	hiOut.a = 1.0f;
+
+	float3 hdrColor = max( lowColor, hiColor * MAX_HDR_OVERBRIGHT );
+	
+	float fMax = max( hdrColor.b, max( hdrColor.r, hdrColor.g ) );
+
+	float blendFactor = saturate( ( fMax - 0.9f ) * 10.0f );
+
+	blendFactor = 1.0f;
+
+	lowOut.rgb = LinearToGamma( lowColor * ( 1.0f - blendFactor ) );
+	hiOut.rgb = LinearToGamma( hiColor * ( blendFactor ) );
+	MYHDR_PS_OUTPUT output;
+	output.color[0] = lowOut;
+	output.color[1] = hiOut;
+	return output;
+}
+